import Vue from 'vue'
import Router from 'vue-router'
import Login from './components/login.vue'
import Home from './components/home.vue'

Vue.use(Router)

const router = new Router({
  routes: [
    { path: '/', redirect: 'login' },
    { path: '/login', component: Login },
    { path: '/home', component: Home }
  ]
})

// 挂载路由导航守卫
router.beforeEach((to, from, next) => {
  // to将要访问的路径，from从哪个路径跳转，next表示放行 next('/')强制跳转
  if (to.path === '/login') return next()
  const tokenStr = window.sessionStorage.getItem('token')
  if (!tokenStr) return next('/login')
  next()
})

export default router
